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发明名称
Самоустанавливающийся нивелир
摘要
申请公布号
SU140220(A1)
申请公布日期
1961.11.30
申请号
SU19600689321
申请日期
1960.12.13
申请人
发明人
RYABCHUK M.T.
分类号
G01C5/02
主分类号
G01C5/02
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代理人
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